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Two children, A and B, with masses M and m, are holding the ends of a (massless) rope of length L and sliding on a (frictionless) frozen lake. Model the children as particles at the ends of the rope. At some moment, the B's velocity has magnitude and is directed perpendicular to the string, while A has zero velocity. Find the tension in the rope. It will help to think about what this looks like in the center-of-mass frame.
A 57.0 kiloton atomic bomb releases as much energy as 57.0 kilotons of TNT (1.0 kiloton of TNT releases about 5.0 x 1012 J of energy). How many grams of uranium are fissioned
A coil of wire is connected to an ideal7.00V battery att= 0. Att=10.0ms, the current in the coil is204mA. Find the resistance and inductance of the coil
an automobile moves on a circular track of radius 1.06 km. it starts from rest from the point x y 1.06 km 0 km and
A molecule consists of two atoms. How far from the first atom is the center of mass of the molecule
Consider Fig, which shows three pith balls and their corresponding net charges. Several notional surfaces have been drawn that enclose some or all of the charges. (A 2-D outline of each surface is shown). Use Gauss' Law to determine the electric f..
Each time you remove a bulb you will calculate the new total resistance and the new current.
Jupiter emits radio waves and also visible light (reflected Sunlight). Which of the following statements about the light we detect from Jupiter is true.
A capacitor is attached to a 5.00 Hz generator. The instantaneous current is observed to reach a maximum value at a certain time. What is the least amount of time that passes before the instantaneous voltage across the capacitor reaches its maximum v..
A 12.3-kg monkey is hanging by one arm from a branch and swinging on a vertical circle. compute the magnitude of the tension in the monkey's arm
A michelson interferometer is used with a helium-neon laser of wavelength 628.8 nm. A glass-walled chamber of interior length 1.005 cm is placed in one of the beams and the position of the mirror is adjusted until bright light is observed at the dete..
Before opening his parachute, a sky diver with a mass of 90.0 kg experiences an upward force from air resistance of 150 N. What is the sky diver's acceleration
An object, at the top of a very tall building, is released from rest and falls freely due to gravity. Neglect air resistance and compute distance covered by the object between times t1 = 5.5 s and t2 = 7.9 s after it is released.
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